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Finding the Fourth Proportional to 405,097.04, 607,592.28 and 124,590.80

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Solution

The fourth proportional to 405,097.04, 607,592.28 and 124,590.80 is: 186,869.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,097.04 : 607,592.28 = 124,590.80 : x
  2. Step 2: Convert to fraction form
    405,097.04/607,592.28 = 124,590.80/x
  3. Step 3: Cross multiply
    405,097.04x = 607,592.28 × 124,590.80
  4. Step 4: Simplify right side
    405,097.04x = 75,700,408,239.02
  5. Step 5: Solve for x
    x = 75,700,408,239.02/405,097.04
  6. Step 6: Final answer
    x = 186,869.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.